package com.itheima.d1_map_impl;

import java.util.LinkedHashMap;

/*
    目标：掌握LinkedHashMap的底层原理。
 */
public class Test2LinkedHashMap {
    public static void main(String[] args) {
        LinkedHashMap<Integer, String> s = new LinkedHashMap<>();
        s.put(4,"ll");
        s.put(2,"qq");
        s.put(8,"ww");
        s.put(1,"ss");
        System.out.println(s);
    }
}
